Automatic cutting machine for cold-rolled steel strips

Abstract

The application discloses a cold-rolled strip steel automatic cutting machine in the technical field of strip steel cutting, which comprises rotating supports, multiple sets of adjusting shafts and two sets of rotating transmission parts, etc., two sets of rotating supports are arranged in correspondence with each other on the rotating support, the rotating supports are rotatably installed on an equipment frame, locking parts for fixing the corresponding rotating supports are installed on the equipment frame, multiple sets of adjusting shafts are rotatably installed on the rotating support, and multiple sets of the adjusting shafts are arranged at equal distances in a circle around the central axis of the rotating support, multiple sets of cutting discs arranged at equal distances and completely same are arranged on each set of the adjusting shafts, and the application solves the problems that different thicknesses of strip steel need different cutters and the gap between the upper and lower cutters, which leads to complicated adjusting or replacing steps, easy errors in gap control, influences cutting quality, and complicated adjusting mode of the device and difficult-to-ensure precision.

Description

Technical Field

[0001] This invention relates to the field of strip steel cutting technology, and more particularly to an automatic cutting machine for cold-rolled strip steel. Background Technology

[0002] Cold-rolled strip steel refers to steel strip and sheet produced by cold rolling hot-rolled strip steel and steel plate at room temperature using a cold rolling mill. Cold-rolled strip steel has advantages such as good surface finish, good flatness, high dimensional accuracy, and good mechanical properties, and is widely used in industries such as automobiles, printed steel drums, construction, building materials, and bicycles. The production process of cold-rolled strip steel includes multiple steps such as pickling, cold rolling, annealing, and leveling, which ensure the high quality and high performance of the strip steel. Cutting is a crucial step in the production of cold-rolled strip steel. The quality of the cutting directly affects the final dimensional accuracy and surface quality of the strip steel.

[0003] In the prior art, when cutting cold-rolled strip steel, different thicknesses of strip steel often require different cutting tools and upper and lower tool gaps to improve cutting accuracy and reduce problems such as burrs and uneven cut edges. However, the steps of adjusting or replacing the tool gap are relatively cumbersome, and the gap control between multiple sets of tools is also prone to errors, which affects the quality of strip steel cutting. At the same time, the adjustment method of the device to adapt to cutting strip steel of different widths is also relatively cumbersome, and its actual adjustment accuracy is difficult to guarantee, which is not conducive to human use. Therefore, those skilled in the art provide an automatic cutting machine for cold-rolled strip steel to solve the problems mentioned in the background art. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of different thicknesses of strip steel requiring different cutting tools and upper and lower tool gaps, which lead to cumbersome adjustment or replacement steps, easy errors in gap control, and impact on cutting quality, as well as complex device adjustment methods and difficulty in guaranteeing accuracy. Therefore, an automatic cutting machine for cold-rolled strip steel is proposed.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic cold-rolled strip steel cutting machine, comprising: The rotating bracket has two sets arranged vertically, and the two sets of rotating brackets are rotatably mounted on the equipment frame. The equipment frame is equipped with locking components for fixing the corresponding rotating brackets. Multiple sets of adjusting shafts are rotatably mounted on the rotating bracket, and the multiple sets of adjusting shafts are arranged equidistantly around the central axis of the rotating bracket. Each set of adjusting shafts is provided with multiple sets of equally spaced and identical cutting discs. Different adjusting shafts on the same rotating bracket are provided with cutting discs of different diameters and materials. The internal part of the adjusting shaft is provided with a lateral adjustment mechanism for controlling the spacing between the multiple sets of cutting discs. Two sets of rotary transmission components are rotatably mounted on the equipment frame. The two sets of rotary transmission components, which are arranged vertically and can rotate in opposite directions, are each equipped with a docking component. The docking component is used to lock the rotary transmission component to the end of the adjusting shaft at the corresponding position, so that when the rotary transmission component rotates, it drives the corresponding adjusting shaft to rotate through the docking component.

[0006] As a further description of the aforementioned automatic cold-rolled strip steel cutting machine: A transmission component is provided between the upper and lower sets of rotating supports to control the two sets of rotating supports to rotate synchronously in opposite directions.

[0007] As a further description of the aforementioned automatic cold-rolled strip steel cutting machine: The rotating support includes two sets of retainers that are rotatably connected to the equipment frame. The adjusting shaft is rotatably installed between the two sets of retainers. A positioning plate corresponding to the locking element is provided at the center of one set of retainers.

[0008] As a further description of the aforementioned automatic cold-rolled strip steel cutting machine: The transmission component includes a gear ring fixedly installed on one of the outer rings of the cage, and the gear rings on the upper and lower outer rings of the cage mesh with each other.

[0009] As a further description of the aforementioned automatic cold-rolled strip steel cutting machine: The locking component includes a fastening screw rotatably mounted on the equipment frame, a positioning plug threaded onto the fastening screw, the positioning plug being slidably connected to the equipment frame, and multiple sets of positioning holes matching the ends of the positioning plug being opened inside the positioning plate.

[0010] As a further description of the aforementioned automatic cold-rolled strip steel cutting machine: The lateral adjustment mechanism includes multiple sets of equidistantly arranged movable frames. One end of the movable frame is fixedly connected to the adjustment shaft, and the other movable frames are slidably connected to the adjustment shaft. The other end of the movable frame is connected to a push-pull component to control its displacement. Adjacent movable frames are connected by cross links, and the center of the movable frame is rotatably connected to the cross link node. The cutting disc is detachably mounted on the movable frame.

[0011] As a further description of the aforementioned automatic cold-rolled strip steel cutting machine: The push-pull component includes an adjusting screw that is rotatably connected to the movable frame. A threaded sleeve that is threadedly connected to the adjusting screw is fixedly installed at the end of the adjusting shaft. A knob is fixedly installed at the end of the adjusting screw that extends outside the adjusting shaft.

[0012] As a further description of the aforementioned automatic cold-rolled strip steel cutting machine: The adjusting shaft has a groove for the movement of the movable frame, and two sets of parallel round rods that slide through the movable frame are fixedly installed on the outside of the adjusting shaft.

[0013] As a further description of the aforementioned automatic cold-rolled strip steel cutting machine: Both sets of rotary transmission components include a connecting shaft that is rotatably connected to the equipment frame. The outer rings of the two sets of connecting shafts are fixedly mounted with meshing gears. The outer rings of the connecting shafts of one set of rotary transmission components are also fixedly mounted with a sprocket for connecting an external drive component.

[0014] As a further description of the aforementioned automatic cold-rolled strip steel cutting machine: The docking component includes a cross rod that is slidably installed inside the connecting shaft. One end of the cross rod inside the connecting shaft is rotatably connected to a telescopic screw. The telescopic screw is threadedly connected to the end of the connecting shaft. The end of the adjusting shaft is provided with a cross groove that matches the cross rod.

[0015] In summary, due to the adoption of the above-mentioned automatic cold-rolled strip steel cutting machine, the beneficial effects of this invention are: By setting up automatically matched tool sets and rotating shafts after adjustment, it is easy to pre-fix process parameters such as optimal clearance, tool material, and diameter matching through the structure. The shearing tool clearance is determined by the machining tolerance of the cutting disc and the assembly geometry. The software parameters in the existing technology can be transformed into hardware precision, thereby effectively improving the accuracy of the device's processing and adjustment. The relative position error of the upper and lower cutting discs depends only on the machining coaxiality of the two sets of rotating supports, rather than manual tool setting. When the support rotates to select the tool, key parameters such as the misalignment, overlap height, and shearing angle of the upper and lower discs are automatically and synchronously corrected, realizing multi-degree-of-freedom error self-compensation. Automatic calibration is achieved by using rotation adjustment, which can avoid repeated manual adjustments, thereby improving the processing efficiency of the device. At the same time, traditional equipment often adopts a "one-tool-for-all" mode due to the difficulty of changing models, which is not conducive to ensuring that each tool set always works in the optimal working range, avoiding the problems of "overload wear" and "precision waste" coexisting. The spacing of the cutting discs in the same group can be quickly and accurately adjusted through the lateral adjustment mechanism, which can further improve the flexibility of the actual operation of the device. Attached Figure Description

[0016] Figure 1 This is a first schematic diagram of the overall structure of the present invention; Figure 2 This is a second schematic diagram of the overall structure of the present invention; Figure 3 This is a first sectional view of the overall structure of the present invention; Figure 4 This is a second sectional view of the overall structure of the present invention; Figure 5This is a schematic diagram of the structure of the adjusting shaft, cutting disc, rotary transmission component, docking component, and lateral adjustment mechanism of the present invention. Figure 6 This is a first cross-sectional view of the structure of the adjusting shaft, cutting disk, and lateral adjusting mechanism of the present invention. Figure 7 This is a second sectional view of the structure of the adjusting shaft, cutting disk, and lateral adjustment mechanism of the present invention. Figure 8 This is a cross-sectional view of the rotating transmission component and docking component structure of the present invention.

[0017] Legend: 10. Equipment frame; 11. Adjusting shaft; 12. Cutting disc; 13. Gear ring; 14. Positioning hole; 15. Slide groove; 16. Round rod; 17. Cross slot; 20. Rotary bracket; 201. Cage; 202. Positioning plate; 30. Locking element; 301. Fastening screw; 302. Positioning insert; 40. Lateral adjustment mechanism; 401. Movable frame; 402. Cross linkage; 403. Push-pull component; 4031. Adjusting screw; 4032. Threaded sleeve; 4033. Knob; 50. Rotary transmission component; 501. Connecting shaft; 502. Gear; 503. Sprocket; 60. Connecting component; 601. Cross rod; 602. Telescopic screw. Detailed Implementation

[0018] The automatic cold-rolled strip steel cutting machine of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1-8As shown, the present invention provides an automatic cold-rolled strip steel cutting machine, including a rotating support 20, multiple sets of adjusting shafts 11, and two sets of rotating transmission components 50, etc. Two sets of rotating supports 20 are arranged vertically and vertically, and the two sets of rotating supports 20 are rotatably mounted on the equipment frame 10. The equipment frame 10 supporting the cutting components can be erected on the production line for conveying cold-rolled strip steel. Corresponding clamping and guiding structures are provided at the front and rear of the equipment. Locking components 30 for fixing the corresponding rotating supports 20 are installed on the equipment frame 10. Multiple sets of adjusting shafts 11 are rotatably mounted on the rotating support 20, and the multiple sets of adjusting shafts 11 are arranged equidistantly around the central axis of the rotating support 20. Each set of adjusting shafts 11 is provided with multiple sets of equally spaced and identical cutting discs 12. Different adjusting shafts 11 on the same rotating support 20 are provided with cutting discs 12 of different diameters and materials.

[0020] The adjusting shafts 11 located in the middle of the two sets of rotating supports 20 are arranged vertically and vertically. The multiple sets of cutting discs 12 on the two sets of adjusting shafts 11 are staggered vertically and abutted horizontally. The diameter and material of the cutting discs 12 used for docking are the same. The two sets of staggered cutting discs 12 rotate in opposite directions to cut the cold-rolled steel strip during the conveying process. In the actual cutting process of cold-rolled steel strip, it can be classified into thin material (thickness ≤ 1.0 mm), medium-thick material (1.0 mm < thickness ≤ 3.0 mm), and thick material (thickness > 3.0 mm). In order to effectively reduce the occurrence of burrs and uneven sides of cold-rolled steel strip of different thicknesses during the cutting process, the gap between the upper and lower cutting discs 12 needs to be different. The above gap is the overlap between the upper and lower cutting discs 12, and the corresponding cutting tools can also be made of different materials.

[0021] When cutting discs 12 of different diameters rotate to the cutting position for rotary shearing, their overlap heights are different, meaning the gap between the upper and lower cutting discs 12 is different. This allows operators to easily select the appropriate tool based on the actual material thickness for shearing. In the actual selection of tools, for thin material processing, tools such as Cr12MoV and SKD11 can be used. These materials have high precision requirements and strong wear resistance, making them suitable for shearing cold-rolled thin plates and silicon steel sheets. For medium and thick material processing, tools such as Cr12MoV and LD steel (7Cr7Mo3V2Si) can be used. These materials balance wear resistance and toughness, making them suitable for conventional cold-rolled steel strips. For thick material processing, tools such as LD steel and 3Cr2W8V can be used. These materials have higher toughness to prevent chipping, making them suitable for high-strength thick steel strips.

[0022] The internal structure of the adjusting shaft 11 is provided with a horizontal adjustment mechanism 40 for controlling the spacing between multiple sets of cutting discs 12. Two sets of rotary transmission components 50 are rotatably mounted on the equipment frame 10. The two sets of rotary transmission components 50, which are arranged vertically and can rotate in opposite directions, are each provided with a docking component 60. The docking component 60 is used to engage the rotary transmission component 50 with the end of the adjusting shaft 11 at the corresponding position, so that when the rotary transmission component 50 rotates, it drives the corresponding adjusting shaft 11 to rotate through the docking component 60.

[0023] Before use, the automatic cold-rolled strip steel cutting machine can be flexibly adjusted according to the corresponding processing requirements. After the operator opens the locking part 30, the rotating bracket 20 can be rotated. The rotating bracket 20 drives the adjusting shaft 11 and the cutting disc 12 to rotate. After the required cutting disc 12 is adjusted to the processing position, the locking part 30 is used to fix the rotating bracket 20. After both the upper and lower sets of rotating brackets 20 are adjusted, the operator can use the docking part 60 to connect the rotating transmission part 50 and the corresponding adjusting shaft 11. The external drive part controls the rotation of the rotating transmission part 50 to drive the corresponding adjusting shaft 11 to rotate synchronously. The adjusting shaft 11 drives the cutting disc 12 to rotate, which can realize the cutting of the steel strip. Finally, the operator can use the horizontal adjustment mechanism 40 to synchronously adjust the spacing between the cutting discs 12 for cutting steel strips of different widths.

[0024] Traditional gap adjustment methods rely on feeler gauge measurement and trial cutting verification, resulting in an error of 0.02mm-0.05mm and a high first-piece scrap rate. This solution allows for the pre-configuration of parameters such as the diameter, material, and gap of the cutting disc 12 on different adjusting shafts 11 according to the optimal process (e.g., thin material shaft with small-diameter Cr12MoV disc, gap preset 0.04mm), resulting in high repeatability and effectively eliminating human error. After switching, the first-piece pass rate can be significantly improved, which is especially beneficial for high-end production conditions such as automotive steel sheets and silicon steel sheets. The rotating bracket 20 of this solution can be integrated with an angle encoder in the future, and the docking part 60 can be configured with a hydraulic automatic clutch, naturally supporting CNC tool selection. Furthermore, the transverse adjustment mechanism 40 can be connected to a servo system to achieve automatic width alignment. This provides a standardized mechanical interface for future integration into the MES system and the realization of one-click "order-tool-parameter" data transfer, thereby reducing costs through intelligent manufacturing transformation.

[0025] In one embodiment, such as Figures 1-5 As shown, a transmission component is provided between the upper and lower sets of rotating supports 20 to control the two sets of rotating supports 20 to rotate synchronously in opposite directions. By setting the transmission component, when one set of rotating supports 20 is rotated, the other set of rotating supports 20 rotates synchronously at equal angles, thereby further improving the convenience and accuracy of device adjustment.

[0026] Specifically, the rotating support 20 includes two sets of retainers 201 rotatably connected to the equipment frame 10. The adjusting shaft 11 is rotatably mounted between the two sets of retainers 201. The rotational connection between the components can be achieved through bearings and other components. One set of retainers 201 has a positioning disc 202 corresponding to the locking member 30 at its center. The other set of retainers 201 is designed to support the blade at the end of the adjusting shaft 11 and is designed to be detachable. The blade end can be connected to the end of the adjusting shaft 11 through a detachable bearing seat. When it is necessary to replace a single cutting disc 12... The cutting disc 12 can be replaced by disassembling and adjusting the support structure at one end of the rotating shaft 11. The transmission component includes a gear ring 13 fixedly installed on the outer ring of one of the retainers 201. The gear rings 13 on the outer rings of the upper and lower retainers 201 mesh with each other. After the locking part 30 is separated from the positioning disc 202, the operator can rotate the retainer 201 to drive the adjusting shaft 11 installed on it to rotate and adjust. The rotation of the upper retainer 201 can drive the rotation of the lower retainer 201 through the two meshing gear rings 13, thereby facilitating the quick adjustment of the position of the upper and lower cutting discs 12.

[0027] To enable rapid adjustment of the rotating bracket 20, the locking component 30 includes a fastening screw 301 rotatably mounted on the equipment frame 10. A positioning plug 302 is threaded onto the fastening screw 301 and slidably connected to the equipment frame 10. The positioning plate 202 has multiple sets of positioning holes 14 that match the ends of the positioning plug 302. When the operator rotates the fastening screw 301, the positioning plug 302 slides within the equipment frame 10. The positioning plug 302, when inserted into the corresponding positioning hole 14, secures the retainer 201. Separating the positioning plug 302 from the positioning plate 202 allows the retainer 201 to rotate freely. The positioning plug 302 also facilitates precise alignment of the end of the adjusting shaft 11 with the rotating transmission component 50.

[0028] In one embodiment, such as Figures 1-7 As shown, specifically, the lateral adjustment mechanism 40 includes multiple sets of equidistantly arranged movable frames 401. One end of the movable frame 401 is fixedly connected to the adjustment shaft 11, and the remaining movable frames 401 are slidably connected to the adjustment shaft 11. The other end of the movable frame 401 is connected to a push-pull member 403 to control its displacement. Adjacent movable frames 401 are connected by a cross link 402, and the center of the movable frame 401 is rotatably connected to the node of the cross link 402. The cutting disc 12 is detachably installed on the movable frame 401. The push-pull member 403 includes an adjustment screw 4031 rotatably connected to the movable frame 401. The end of the adjustment shaft 11 is fixedly installed with a threaded sleeve 4032 threadedly connected to the adjustment screw 4031. A knob 4033 is fixedly installed at the end of the adjustment screw 4031 that extends to the outside of the adjustment shaft 11.

[0029] The operator rotates the knob 4033 to drive the adjusting screw 4031 to rotate. The end of the adjusting screw 4031 can drive the movable frame 401 connected to it to slide within the adjusting shaft 11. When the movable frame 401 moves, it can drive the multiple sets of movable frames 401 in the middle to adjust simultaneously through the cross linkage 402. This allows for the rapid adjustment of the cutting discs 12 installed on the multiple sets of movable frames 401 at equal intervals. The device has high flexibility and precision in actual operation. Correspondingly, the adjusting shaft 11 has a sliding groove 15 for the movable frame 401 to move. Two sets of parallel round rods 16 that slide through the movable frame 401 are fixedly installed on the outside of the adjusting shaft 11. The round rods 16 and the sliding groove 15 can provide stable limiting support for the moving movable frame 401.

[0030] In one embodiment, such as Figures 1-7 As shown, specifically, both sets of rotary transmission components 50 include a connecting shaft 501 rotatably connected to the equipment frame 10. The outer rings of the two sets of connecting shafts 501 are fixedly mounted with meshing gears 502. The outer rings of the connecting shafts 501 of one set of rotary transmission components 50 are also fixedly mounted with a sprocket 503 for connecting an external drive component. The drive component can be a servo motor whose output end is connected to the other set of sprockets 503. The operation of the servo motor can drive the connecting shaft 501 to rotate through the sprockets 503 and the chain. The meshing gears 502 can realize the synchronous reverse rotation of the upper and lower sets of connecting shafts 501. When the connecting shaft 501 rotates, it can drive the adjusting shaft 11 connected to it to rotate through the docking part 60. A protective cover sleeved on the outside of the rotary transmission component 50 can be installed on one side of the equipment frame 10 by bolts to provide necessary safety protection for the equipment.

[0031] Correspondingly, the docking component 60 includes a cross rod 601 slidably installed inside the connecting shaft 501. One end of the cross rod 601 located inside the connecting shaft 501 is rotatably connected to a telescopic screw 602. The telescopic screw 602 is threadedly connected to the end of the connecting shaft 501. The end of the adjusting shaft 11 is provided with a cross groove 17 that matches the cross rod 601. When the operator rotates the telescopic screw 602 and moves it inside the connecting shaft 501, the end of the telescopic screw 602 can control the cross rod 601 to slide inside the connecting shaft 501. The cross rod 601 is engaged in the corresponding cross groove 17 at the end of the adjusting shaft 11, thereby realizing the transmission connection between the connecting shaft 501 and the adjusting shaft 11.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the present invention's technology and inventive concept, should be covered within the scope of protection of the present invention.

Claims

1. An automatic cutting machine for cold-rolled strip steel, characterized in that, include: Two sets of rotating brackets (20) are provided on the upper and lower sides respectively. The two sets of rotating brackets (20) are rotatably installed on the equipment frame (10), and the equipment frame (10) is equipped with locking parts (30) for fixing the corresponding rotating brackets (20). Multiple sets of adjusting shafts (11) are rotatably mounted on the rotating bracket (20), and the multiple sets of adjusting shafts (11) are arranged equidistantly around the central axis of the rotating bracket (20). Each set of adjusting shafts (11) is provided with multiple sets of equally spaced and identical cutting discs (12). Different adjusting shafts (11) on the same rotating bracket (20) are provided with cutting discs (12) of different diameters and materials. The interior of the adjusting shaft (11) is provided with a transverse adjustment mechanism (40) for controlling the spacing between the multiple sets of cutting discs (12). Two sets of rotary transmission components (50) are rotatably mounted on the equipment frame (10). The two sets of rotary transmission components (50) are arranged vertically and can rotate in opposite directions. Each set of rotary transmission components (50) is provided with a docking component (60). The docking component (60) is used to realize the engagement between the rotary transmission component (50) and the end of the corresponding adjustment shaft (11) so that when the rotary transmission component (50) rotates, it drives the corresponding adjustment shaft (11) to rotate through the docking component (60).

2. The automatic cold-rolled strip steel cutting machine according to claim 1, characterized in that: A transmission component is provided between the upper and lower sets of rotating supports (20) to control the two sets of rotating supports (20) to rotate synchronously in opposite directions.

3. The automatic cold-rolled strip steel cutting machine according to claim 2, characterized in that: The rotating bracket (20) includes two sets of retainers (201) rotatably connected to the equipment frame (10). The adjusting shaft (11) is rotatably installed between the two sets of retainers (201). A positioning plate (202) corresponding to the locking member (30) is provided at the center of one set of retainers (201).

4. The automatic cold-rolled strip steel cutting machine according to claim 3, characterized in that: The transmission component includes a gear ring (13) fixedly installed on the outer ring of one of the sets of retainers (201), and the gear rings (13) on the outer rings of the upper and lower sets of retainers (201) mesh with each other.

5. The automatic cold-rolled strip steel cutting machine according to claim 3, characterized in that: The locking component (30) includes a fastening screw (301) rotatably mounted on the equipment frame (10), a positioning plug (302) threadedly connected to the fastening screw (301), the positioning plug (302) being slidably connected to the equipment frame (10), and the positioning disk (202) having multiple sets of positioning holes (14) matching the ends of the positioning plug (302) inside.

6. The automatic cold-rolled strip steel cutting machine according to claim 1, characterized in that: The lateral adjustment mechanism (40) includes multiple sets of equidistantly arranged movable frames (401). One end of the movable frame (401) is fixedly connected to the adjustment shaft (11), and the other movable frames (401) are slidably connected to the adjustment shaft (11). The other end of the movable frame (401) is connected to a push-pull member (403) to control its displacement. Adjacent movable frames (401) are connected by a cross link (402), and the center of the movable frame (401) is rotatably connected to the node of the cross link (402). The cutting disc (12) is detachably installed on the movable frame (401).

7. The automatic cold-rolled strip steel cutting machine according to claim 6, characterized in that: The push-pull component (403) includes an adjusting screw (4031) rotatably connected to the movable frame (401), and a threaded sleeve (4032) threadedly connected to the adjusting screw (4031) is fixedly installed at the end of the adjusting shaft (11), and a knob (4033) is fixedly installed at one end of the adjusting screw (4031) extending to the outside of the adjusting shaft (11).

8. The automatic cold-rolled strip steel cutting machine according to claim 6, characterized in that: The adjusting shaft (11) has a groove (15) for the displacement of the moving frame (401), and two sets of parallel round rods (16) that slide through the moving frame (401) are fixedly installed on the outside of the adjusting shaft (11).

9. The automatic cold-rolled strip steel cutting machine according to claim 1, characterized in that: Both sets of rotary transmission components (50) include a connecting shaft (501) that is rotatably connected to the equipment frame (10). The outer rings of the two sets of connecting shafts (501) are fixedly mounted with meshing gears (502). The outer rings of the connecting shafts (501) of one set of rotary transmission components (50) are together fixedly mounted with a sprocket (503) for connecting an external drive component.

10. An automatic cold-rolled strip steel cutting machine according to claim 9, characterized in that: The docking component (60) includes a cross rod (601) that is slidably installed inside the connecting shaft (501). One end of the cross rod (601) located inside the connecting shaft (501) is rotatably connected to a telescopic screw (602). The telescopic screw (602) is threadedly connected to the end of the connecting shaft (501). The end of the adjusting shaft (11) is provided with a cross groove (17) that matches the cross rod (601).

Images